WEP prepared the detailed well design making use of corrosion-resistant materials. Together with partners Veegeo, HVC and Hydreco Geomec research was done in the use of GRE-lined tubulars. This study resulted in the fact that GRE-lined casing is being implemented in the well design as cemented production casing to prevent corrosion without the need for corrosion inhibitors. The wells have a 2 string design with a sealed annulus that can be monitored for well integrity. Access to the reservoir is created by means of perforating. WEP prepared the drilling programs and HSE documents. Drilling engineering support is provided during the drilling phase.
Drilling of the first well (NLW-GT-04) started on June 11th and ended upon completion of NLW-GT-03-S1 on August 29th. Due to hole problems in NLW-GT-03 a sidetrack had to be drilled. Both wells are finally successfully drilled.
Source images: René Kooger – Rig Logistics Supervisor